Gas heater control device

Abstract

The utility model relates to the technical field of gas heater control, in particular to a gas heater control device. The device comprises a heater, a plurality of groups of heating wires are arranged in the heater, the heating wires are connected with a control loop, the control loop is connected with a change-over switch, and the change-over switch is further connected with a field control box and an industrial personal computer. The heating wires are divided into an inlet temperature-rising heating wire, an inlet constant-temperature heating wire, a middle-section temperature-rising heating wire, an outlet constant-temperature heating wire and an outlet temperature-rising heating wire according to the direction from gas entering to gas discharging, and the inlet temperature-rising heating wire, the middle-section temperature-rising heating wire and the outlet temperature-rising heating wire are all provided with power regulators for regulating temperature. According to the utility model, the heating wires of the heater can be configured in multiple groups, a power regulator heating loop and a direct heating loop are configured according to requirements, selective start and stop can be realized in different environments, and meanwhile, multiple control modes can be adopted, so that the stability of the heater is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas heater control technical field, concretely relates to a gas heater control device. BACKGROUND

[0002] The existing control system of gas heater is mostly temperature control meter control, and the temperature control of the heater is carried out by the signal of the temperature control meter to the power regulator. For example, the Chinese patent with the authorized announcement number CN202972518U discloses a dewar flask evacuation heating system, a heater arranged at the output port of the air compressor heats the input gas, the control precision of the above patent to the heater is relatively low, the control mode is single, and the precision is insufficient. When the temperature control meter is damaged, the heating needs to be stopped for replacement, and the stability is insufficient. The temperature control meter control depends on the parameter setting, the parameter setting depends on the long-term operation accumulation, and the setting data steps are complex. When the production line environment changes or the product switches, it is difficult to change in time, and the flexibility is insufficient. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem that the prior art is insufficient, provides a gas heater control device, can configure the heating wire of the heater in multiple groups, configure the heating loop and direct heating loop of the power regulator as required, selectively starts and stops for different environments, can adopt multiple control modes at the same time, and improves the stability of the heater.

[0004] The technical scheme of the utility model provides:

[0005] A gas heater control device, comprising a heater, a plurality of groups of heating wires are arranged in the heater, a control loop is connected to the heating wires, a switch is connected to the control loop, and a field control box and an industrial computer are further connected to the switch.

[0006] Preferably, the heating wires are provided with 5 groups, the heating wires are divided into inlet temperature rising heating wires, inlet constant temperature heating wires, middle section temperature rising heating wires, outlet constant temperature heating wires and outlet temperature rising heating wires according to the direction of gas entering and discharging, and the inlet temperature rising heating wires, the middle section temperature rising heating wires and the outlet temperature rising heating wires are all configured with power regulators for adjusting temperature.

[0007] Preferably, a plurality of groups of temperature measuring devices are arranged in the interior and at the outlet of the heater, and the temperature measuring devices are electrically connected to the field control box and the industrial computer.

[0008] Preferably, the field control box and the industrial computer are electrically connected to the heater.

[0009] Preferably, the industrial computer comprises a display and a PLC controller.

[0010] Preferably, the on-site control box is provided with an over-temperature monitoring table, a temperature measuring and control table, start-stop buttons of each group of heaters, indicator lights and an emergency stop button.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The present application sets multiple groups of heating wires, and the remaining heating wires can still work normally in the case of failure of a group of heating wires, effectively improving the accuracy, stability and flexibility of gas heater control, reducing the energy consumption of continuously constant-temperature gas production and improving the yield of related products, having certain economic benefits for enterprises; By setting two control modes of on-site control box and industrial computer, when the industrial computer fails to work, it can be switched to the on-site control box for control in time, improving the stability of the related production line and ensuring the normal operation of the production line to a greater extent and reducing economic losses caused by production stoppage. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 It is the structural schematic diagram of the present utility model.

[0015] In the figure: 1, heater; 2, heating wire; 3, temperature measuring device; 4, control circuit; 5, switch; 6, on-site control box; 7, industrial computer; 8, power regulator. DETAILED DESCRIPTION

[0016] In order to make the personnel in the technical field better understand the technical scheme in the present utility model, the following will combine the drawings in the embodiment of the present utility model to clearly and completely describe the technical scheme in the embodiment of the present utility model, obviously, the described embodiment is only a part of the embodiment of the present utility model, not all the embodiments. Based on the embodiment in the present utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present utility model.

[0017] Embodiment 1

[0018] As Figure 1As shown, the embodiment provides a gas heater control device, which comprises a heater 1, a plurality of groups of heating wires 2 arranged in the heater 1, a control circuit 4 connected to the heating wires 2, a switching switch 5 connected to the control circuit 4, and a field control box 6 and an industrial computer 7 connected to the switching switch 5. In the power distribution circuit of each group of heating wires 2, a corresponding fast fuse and a feedback signal are arranged, the feedback signal is introduced into a PLC controller, and when the heating wires 2 fail, the fast fuse can be quickly cut off, and the fault signal is transmitted to the industrial computer 7.

[0019] Preferably, the heating wires 2 are arranged in 5 groups, and the heating wires 2 are divided into inlet temperature rising heating wires, inlet constant temperature heating wires, middle section temperature rising heating wires, outlet constant temperature heating wires and outlet temperature rising heating wires according to the direction of gas entering and discharging, and the inlet temperature rising heating wires, the middle section temperature rising heating wires and the outlet temperature rising heating wires are all provided with power regulators 8 for adjusting temperature. By redundantly arranging the heating wires 2, the heating demand can still be met when one group of heating wires 2 fails, and different working conditions can be adapted by cooperation of different groups of heating wires 2.

[0020] Preferably, a plurality of groups of temperature measuring devices 3 are arranged in the heater and at the outlet thereof, and the temperature measuring devices 3 are electrically connected to the field control box 6 and the industrial computer 7.

[0021] Preferably, the field control box 6 and the industrial computer 7 are electrically connected to the heater 1.

[0022] Preferably, the industrial computer 7 comprises a display and a PLC controller. The internal temperature measuring signals, the outlet temperature measuring signals and the inlet front temperature measuring signals of the plurality of groups of temperature measuring devices 3 are input to the PLC controller, the PLC controller timely adjusts the heater 1, realizes more accurate and stable control, simultaneously introduces various fault signals into the industrial computer 7, realizes rapid discovery and rapid processing of faults, and further improves stability.

[0023] Preferably, the field control box 6 is provided with an over-temperature monitoring table, a temperature measuring and control table, start-stop buttons, indicator lights and an emergency stop button of each group of heaters 1. The internal temperature measuring signals and the outlet temperature measuring signals of the temperature measuring devices 3 are input to the over-temperature monitoring table and the temperature measuring and control table, and basic and brief control of the heater 1 can be realized.

[0024] Working principle: when in use, the gas heater control device is configured with multiple groups of heating wires 2 and fast fuses, and sends feedback signals to the PLC controller, so that the precise temperature regulation and rapid fault response of the heating wires 2 are realized. The heating wires 2 are divided into different functional groups according to the gas flow direction, and cooperate with the power regulator 8 to adjust the temperature and ensure the heating demand. The temperature measuring device 3 monitors the internal and outlet temperatures of the heater 1, the signals are input to the PLC controller to realize precise control, and the PLC controller is connected with the industrial computer 7 to realize rapid fault processing. If the industrial computer 7 fails, the on-site control box 6 is switched on through the switch 5 to control the heater 1, so that the accuracy, stability and flexibility of the heater 1 control are improved.

[0025] Although the utility model has been described in detail by referring to the drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model without departing from the spirit and essence of the utility model, and these modifications or replacements shall be within the scope of the utility model. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and these changes or replacements shall be within the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the protection scope of the claims.

Claims

1. A gas heater control device, characterized by, It includes a heater (1), a plurality of groups of heating wires (2) are arranged in the heater (1), a control circuit (4) is connected to the heating wires (2), a switch (5) is connected to the control circuit (4), and a field control box (6) and an industrial computer (7) are further connected to the switch (5).

2. A gas heater control apparatus as claimed in claim 1, wherein The heating wires (2) are arranged in five groups, and the heating wires (2) are divided into inlet temperature rising heating wires, inlet constant temperature heating wires, middle section temperature rising heating wires, outlet constant temperature heating wires and outlet temperature rising heating wires according to the direction of gas entering and discharging, and the inlet temperature rising heating wires, the middle section temperature rising heating wires and the outlet temperature rising heating wires are all provided with power regulators (8) for adjusting temperature.

3. A gas heater control apparatus as claimed in claim 1, wherein A plurality of groups of temperature measuring devices (3) are arranged in the heater (1) and at the outlet, and the temperature measuring devices (3) are electrically connected to the field control box (6) and the industrial computer (7).

4. A gas heater control apparatus as claimed in claim 1, wherein The field control box (6) and the industrial computer (7) are electrically connected to the heater (1).

5. A gas heater control apparatus as claimed in claim 1, wherein The industrial computer (7) comprises a display and a PLC controller.

6. A gas heater control apparatus as claimed in claim 1, wherein The field control box (6) is provided with an over-temperature monitoring table, a temperature measuring and control table, start-stop buttons of each group of heating wires (2), indicator lights and an emergency stop button.

Images